2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 244
Missing or out of place foam blocks can impact system performance.
Reference Information
Schematic Reference
Active Noise Cancellation Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Active Noise Cancellation
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Active Noise Cancellation Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Active Noise
Cancellation Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate microphone.
2. Ignition ON Radio ON, test for 0.47-2.75 V between the microphone (-) signal circuit terminal A and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
3. Test for 5.75-8.03 V between the microphone (+) signal circuit terminal B and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
4. If all circuits test normal, replace the appropriate microphone.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Radio Volume Compensator Interior Noise Microphone Replacement (Floor Console) (See: Accessories and Optional Equipment/Radio,
Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior Noise Microphone
Replacement (Floor Console))Radio Volume Compensator Interior Noise Microphone Replacement (Headliner) (See: Accessories and
Optional Equipment/Radio, Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior
Noise Microphone Replacement (Headliner))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for amplifier replacement, setup, and programming
B137A
DTC B137A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Showing posts with label Missing or out of place foam blocks can impact system performance.. Show all posts
Showing posts with label Missing or out of place foam blocks can impact system performance.. Show all posts
Tuesday, August 25, 2020
Sunday, November 10, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 244
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 244
Missing or out of place foam blocks can impact system performance.
Reference Information
Schematic Reference
Active Noise Cancellation Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Active Noise Cancellation
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Active Noise Cancellation Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Active Noise
Cancellation Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate microphone.
2. Ignition ON Radio ON, test for 0.47-2.75 V between the microphone (-) signal circuit terminal A and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
3. Test for 5.75-8.03 V between the microphone (+) signal circuit terminal B and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
4. If all circuits test normal, replace the appropriate microphone.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Radio Volume Compensator Interior Noise Microphone Replacement (Floor Console) (See: Accessories and Optional Equipment/Radio,
Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior Noise Microphone
Replacement (Floor Console))Radio Volume Compensator Interior Noise Microphone Replacement (Headliner) (See: Accessories and
Optional Equipment/Radio, Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior
Noise Microphone Replacement (Headliner))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for amplifier replacement, setup, and programming
B137A
DTC B137A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Missing or out of place foam blocks can impact system performance.
Reference Information
Schematic Reference
Active Noise Cancellation Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Active Noise Cancellation
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Active Noise Cancellation Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Active Noise
Cancellation Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate microphone.
2. Ignition ON Radio ON, test for 0.47-2.75 V between the microphone (-) signal circuit terminal A and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
3. Test for 5.75-8.03 V between the microphone (+) signal circuit terminal B and ground.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.
瀚慖f less than the specified range, test the circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the
amplifier.
4. If all circuits test normal, replace the appropriate microphone.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Radio Volume Compensator Interior Noise Microphone Replacement (Floor Console) (See: Accessories and Optional Equipment/Radio,
Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior Noise Microphone
Replacement (Floor Console))Radio Volume Compensator Interior Noise Microphone Replacement (Headliner) (See: Accessories and
Optional Equipment/Radio, Stereo, and Compact Disc/Automatic Volume Control/Service and Repair/Radio Volume Compensator Interior
Noise Microphone Replacement (Headliner))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for amplifier replacement, setup, and programming
B137A
DTC B137A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
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